QA1 3-1/2in ID Tapered High Travel Spring - 10in Length x 450lbs/in - Silver Powder Coated

High travel coil spring with a 450 lb spring rate. Tapered end. Made with chrome silicon and has a silver powder coat finish. 3.57" inner diameter and a 10" length. Available in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of high travel springs with a silver powder coated finish. Made in the USA, these 2" I.D. high travel springs are manufactured from specially designed high-tensile, chrome silicon alloy spring wire, which allows them to have fewer coils and a smaller wire diameter. As a result, these springs are lighter and have increased travel due to the larger distance between the coils. These lighter springs reduce unsprung weight and react faster, optimizing suspension performance. In addition, this high-grade material, along with careful heat-treating and post-processing, allows for greatly improved fatigue life, and the coil design allows the springs to be compressed to coil-bind without affecting spring rate or free height. These new high travel springs are silver powder coated and ground at both ends for straight, consistent and accurate operations. In addition, all QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions. Chrome Silicon Steel, All QA1 springs are manufactured using the highest quality materials for high strength, consistency and long life. Cold Wound - Heat Treated - Shot Peened, All QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability. Squared Ends, All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation. Lengths and Rates Marked, All QA1 springs are clearly marked with the free length of the spring and spring rate for quick and easy identification. Made in the USA, QA1's high travel springs are proudly made in the USA. LIFETIME GUARANTEE, All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.

• Designed to be as light as possible with maximum travel and superb performance
• Lifetime guarantee to remain within 2% of their original free height
• Durable powdercoated finish
• Made in the USA

The QA1 Part Number qap10HTSF450 is a high-performance coil spring designed for demanding automotive applications. Crafted from premium chrome silicon alloy steel, this spring features a 450 lb/in spring rate and a 3-1/2 inch inner diameter, providing excellent support and travel capacity. Its tapered end design allows for optimized fitment and performance, making it ideal for specialized suspension setups. The spring's silver powder coat finish offers enhanced durability and corrosion resistance, ensuring longevity even under harsh conditions. Manufactured in the USA, this spring is cold wound, heat treated, shot peened, and ground at both ends to ensure precise, straight operation and consistent performance over time. The high-tensile material allows for fewer coils and a smaller wire diameter, reducing unsprung weight and improving reaction times, which translates to a more responsive suspension system. The spring is engineered to be lightweight while maximizing travel, making it suitable for vehicles requiring increased suspension flexibility without compromising strength. QA1 guarantees that these springs will maintain within 2% of their original free height and rate throughout their lifetime under normal use, providing peace of mind and long-term reliability.

Designed specifically for applications such as the 1969-1972 Pontiac LeMans, this high travel spring fits multiple model years and offers a combination of durability, performance, and ease of identification. The spring's length, rate, and markings are clearly labeled for quick installation and maintenance. With a focus on quality and precision manufacturing, QA1's springs are built to meet stringent standards, ensuring consistent operation and longevity. Whether for racing, off-road, or custom suspension projects, this high travel spring delivers maximum travel and performance with a focus on reducing weight and improving responsiveness. Its innovative design and manufacturing process make it a top choice for automotive enthusiasts looking to enhance their vehicle's suspension capabilities.

Features:

• Designed for maximum travel and lightweight performance

• Lifetime guarantee to stay within 2% of original free height

• Durable silver powder coat finish for corrosion resistance

• Made in the USA with high-quality chrome silicon alloy steel

• Ground at both ends for straight, consistent operation

• Fitted with clearly marked length and spring rate for easy identification

• Fewer coils and smaller wire diameter for reduced unsprung weight

• Optimized for increased suspension travel and response

Fitment:
Buick Skylark 350 1970
Buick Skylark 350 1972
Buick Skylark Base 1968
Buick Skylark Base 1969
Buick Skylark Base 1970
Buick Skylark Base 1971
Buick Skylark Base 1972
Buick Skylark Custom 1968
Buick Skylark Custom 1969
Buick Skylark Custom 1970
Buick Skylark Custom 1971
Buick Skylark Custom 1972
Buick Special Base 1968
Buick Special Base 1969
Chevrolet Chevelle 300 1968
Chevrolet Chevelle 300 Deluxe 1968
Chevrolet Chevelle 300 Deluxe 1969
Chevrolet Chevelle Base 1968
Chevrolet Chevelle Base 1970
Chevrolet Chevelle Base 1971
Chevrolet Chevelle Base 1972
Chevrolet Chevelle Concours 1968
Chevrolet Chevelle Concours 1969
Chevrolet Chevelle Concours 1970
Chevrolet Chevelle Concours 1971
Chevrolet Chevelle Concours 1972
Chevrolet Chevelle Concours Estate 1969
Chevrolet Chevelle Concours Estate 1970
Chevrolet Chevelle Concours Estate 1971
Chevrolet Chevelle Concours Estate 1972
Chevrolet Chevelle Greenbrier 1969
Chevrolet Chevelle Greenbrier 1970
Chevrolet Chevelle Greenbrier 1971
Chevrolet Chevelle Greenbrier 1972
Chevrolet Chevelle Malibu 1968
Chevrolet Chevelle Malibu 1969
Chevrolet Chevelle Malibu 1970
Chevrolet Chevelle Malibu 1971
Chevrolet Chevelle Malibu 1972
Chevrolet Chevelle Nomad 1968
Chevrolet Chevelle Nomad 1969
Chevrolet Chevelle Nomad 1970
Chevrolet Chevelle Nomad 1971
Chevrolet Chevelle Nomad 1972
Chevrolet Chevelle SS 1968
Chevrolet Chevelle SS 1969
Chevrolet Chevelle SS 1970
Chevrolet Chevelle SS 1971
Chevrolet Chevelle SS 1972
Chevrolet El Camino Base 1968
Chevrolet El Camino Base 1969
Chevrolet El Camino Base 1970
Chevrolet El Camino Base 1971
Chevrolet El Camino Base 1972
Chevrolet El Camino Custom 1968
Chevrolet El Camino Custom 1969
Chevrolet El Camino Custom 1970
Chevrolet El Camino Custom 1971
Chevrolet El Camino Custom 1972
Chevrolet El Camino SS 1968
Chevrolet El Camino SS 1969
Chevrolet El Camino SS 1970
Chevrolet El Camino SS 1971
Chevrolet El Camino SS 1972
Chevrolet Monte Carlo Base 1970
Chevrolet Monte Carlo Base 1971
Chevrolet Monte Carlo Base 1972
GMC Sprint Base 1971
GMC Sprint Base 1972
GMC Sprint Custom 1972
Oldsmobile 442 Base 1968
Oldsmobile 442 Base 1969
Oldsmobile 442 Base 1970
Oldsmobile 442 Base 1971
Oldsmobile Cutlass Base 1968
Oldsmobile Cutlass Base 1969
Oldsmobile Cutlass Base 1970
Oldsmobile Cutlass Base 1971
Oldsmobile Cutlass Base 1972
Oldsmobile Cutlass Cruiser 1972
Oldsmobile Cutlass S 1968
Oldsmobile Cutlass S 1971
Oldsmobile Cutlass S 1972
Oldsmobile Cutlass Supreme Base 1968
Oldsmobile Cutlass Supreme Base 1969
Oldsmobile Cutlass Supreme Base 1970
Oldsmobile Cutlass Supreme Base 1971
Oldsmobile Cutlass Supreme Base 1972
Oldsmobile Vista Cruiser Base 1968
Oldsmobile Vista Cruiser Base 1969
Oldsmobile Vista Cruiser Base 1970
Oldsmobile Vista Cruiser Base 1971
Oldsmobile Vista Cruiser Base 1972
Pontiac Grand Prix Base 1969
Pontiac Grand Prix Base 1970
Pontiac Grand Prix Base 1971
Pontiac Grand Prix Base 1972
Pontiac GTO Base 1968
Pontiac GTO Base 1969
Pontiac GTO Base 1970
Pontiac GTO Base 1971
Pontiac GTO Base 1972
Pontiac GTO The Judge 1970
Pontiac GTO The Judge 1971
Pontiac LeMans Base 1968
Pontiac LeMans Base 1969
Pontiac LeMans Base 1970
Pontiac LeMans Base 1971
Pontiac LeMans Base 1972
Pontiac LeMans Luxury 1972
Pontiac LeMans Safari 1969
Pontiac LeMans Safari 1970
Pontiac LeMans Sport 1970
Pontiac LeMans Sport 1971
Pontiac LeMans Sport 1972
Pontiac LeMans T37 1971
Pontiac Tempest Base 1968
Pontiac Tempest Base 1969
Pontiac Tempest Base 1970
Pontiac Tempest Custom 1968
Pontiac Tempest Custom 1969
Pontiac Tempest GT 1970
Pontiac Tempest Safari 1968
Pontiac Tempest Safari 1969